Teachoo Quiz

Maths Permutations and Combinations Class 11 MCQ and Assertion Questions

Short Quiz · Class 11 · Maths · CBSE

Preparing for CBSE

Chapter 6 Class 11 Permutations and Combinations | 5 questions | about 4 minutes

Practise Permutations and Combinations Class 11 with Teachoo's Short Quiz (Class 11 · Maths · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 5
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Question 1 of 5

Assertion: The letters of DAUGHTER can be arranged in 4320 ways if all three vowels are together.


Reason: Since all eight letters of DAUGHTER are distinct, their total number of unrestricted arrangements is \(8!\).

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Question 2 of 5

Assertion: The letters of the word BALLOON can be arranged in \(\dfrac{7!}{2!\,2!}=1260\) distinct ways.


Reason: Interchanging the two L's or interchanging the two O's does not produce a new arrangement.

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Question 3 of 5
NCERT Exemplar
The number of 5-digit telephone numbers having atleast one of their digits repeated is
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Question 4 of 5

Assertion: \({}^{4}P_{4}=24\).


Reason: \({}^{4}P_{4}=\dfrac{4!}{(4-4)!}=\dfrac{4!}{0!}=0\).

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Question 5 of 5
NCERT Exemplar
The total number of 9 digit numbers which have all different digits is
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